package com.jt.service;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.jt.pojo.User;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.jt.mapper.UserMapper;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Service
public class UserServiceImpl implements UserService {
	
	@Autowired
	private UserMapper userMapper;
	private static Map<Integer,String> columnMap=new HashMap<>();
	static {
		columnMap.put(1, "username");
		columnMap.put(2,"phone");
		columnMap.put(3, "email");
	}


	@Override
	public List<User> findAll() {
		return userMapper.selectList(null);
	}

	@Override
	public boolean checkUser(String param, Integer type) {
		QueryWrapper<User> queryWrapper=new QueryWrapper<>();
		queryWrapper.eq(columnMap.get(type), param);
		int count=userMapper.selectCount(queryWrapper);
		return count>0;
	}


}
